Beachy says he sent tomatoes from his farm and a nearby farm to a food distributor in Minnesota. The distributor sent 15 cases of 12 one-pint containers of the affected tomatoes to stores in the three states between July 26 and Aug. 6.

No illnesses have been reported.

Beachy says he became of aware of the health risk after the Minnesota Department of Agriculture collected a sample from the Minnesota distributor that was found to be contaminated.